FUJITSU MPG3XXXAH-E User Manual
Page 23

C141-E116-01EN
1 - 6
(3)
Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
Table 1.3
Current and power dissipation
Typical RMS current (*1) [mA]
Mode of Operation
+12 V
+5 V
Typical Power (*2) [watts]
Model
MPG
3204AH-E
MPG
3307AH-E
MPG
3409AH-E
All
Models
MPG
3204AH-E
MPG
3307AH-E
MPG
3409AH-E
Spin up
1950 peak
1950 peak
1950 peak
800 peak
27.4
27.4
27.4
Idle (Ready) (*3)
350
400
400
490
6.7
7.3
7.3
R/W (On Track) (*4)
370
450
450
600
7.4
8.4
8.4
Seek (Random) (*5)
480
540
540
570
8.6
9.3
9.3
Standby
18
18
18
120
0.8
0.8
0.8
Sleep
18
18
18
120
0.8
0.8
0.8
Energy efficiency (rank) (*6) [watt / GB]
0.327 (A)
0.237 (B)
0.178 (B)
*1
Current is typical rms except for spin up.
*2
Power requirements reflect nominal values for +12V and +5V power.
*3
Idle mode is in effect when the drive is not reading, writing, seeking, or executing any commands. A portion of the R/W circuitry is powered down,
the spindle motor is up to speed and the Drive ready condition exists.
*4
R/W mode is defined as 50% read operations and 50% write operations on a single physical track.
*5
Seek/W/R mode is defined as 33% seek operations, 33% write operations, and 33% read operations.
*6
Energy efficiency based on the Law concerning the Rational Use of Energy indicates the value obtained by dividing power consumption by the storage
capacity. (Japan only)